IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v220y2024ics096014812301594x.html
   My bibliography  Save this article

Sediment erosion characteristics of Pelton turbine runner: Effects of sediment concentration and diameter

Author

Listed:
  • Li, Lihao
  • Lu, Jiaxing
  • Gong, Yong
  • Zhao, Haoyu
  • Liu, Xiaobing
  • Zhu, Baoshan

Abstract

The stable operation of Pelton turbine under sediment conditions is the key guarantee of the hydropower storage power generation system. This research focuses on sediment erosion characteristics of a full-size Pelton turbine runner under rated working conditions through numerical simulation. The primary objective is to study the influences of different sediment concentrations (0.6 %, 0.45 %, and 0.15 %) and diameters (1 mm, 0.1 mm, 0.01 mm, and 0.001 mm) on Pelton turbine runner. Primarily, Runner efficiency is most affected by the concentrations of sediment present, followed by the diameters. Additionally, the relationships between the different sediment concentrations and diameters and the sediment erosion characteristics of the runner are established by comparing the results of experimental and numerical simulations. The sediment concentration mainly affects the surface erosion amounts and raising the sediment concentration exacerbates the surface erosion amounts. The sediment diameters primarily affect the distribution of erosion regions on the runner. Sediment particles with large diameters (d ≥ 0.1 mm) tend to create concentrated erosion regions on both sides of the water outlets of the buckets and at the splitter edge. Conversely, sediment particles with small diameters (d < 0.1 mm) result in additional dispersed erosion regions on the surfaces of the buckets.

Suggested Citation

  • Li, Lihao & Lu, Jiaxing & Gong, Yong & Zhao, Haoyu & Liu, Xiaobing & Zhu, Baoshan, 2024. "Sediment erosion characteristics of Pelton turbine runner: Effects of sediment concentration and diameter," Renewable Energy, Elsevier, vol. 220(C).
    • Handle: RePEc:eee:renene:v:220:y:2024:i:c:s096014812301594x
    DOI: 10.1016/j.renene.2023.119679
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S096014812301594X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2023.119679?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:220:y:2024:i:c:s096014812301594x. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.